OROVILLE — Testimony got under way Tuesday in the trial of an Oroville suspect charged in the fatal “rage” beating of a man in a Yankee Hill mobile home park last year.

Several witnesses told the Butte County Superior Court jury that Leslie Allen Bond Jr., then 23, had been angrily looking for another man with whom he”d been in a prior altercation, when he allegedly attacked Adam Siegler, 24, as he was working outside Jan. 31, 2009, repairing a trailer so his family could move in.

Although witnesses differed somewhat in their account of the fatal confrontation, most testified Bond appeared to have been drinking and in a rage when he allegedly knocked the victim unconscious with the second of two solid punches to the face. Siegler lapsed into a coma and died a few days later at a local hospital without regaining consciousness after being taken off life-support systems.

Both before and after the fatal fight, witnesses claimed Bond continued to yell “white power” and challenge other people to fight that night.

Deputy district attorney Mark Murphy told the eight-man, four-woman jury Tuesday that when the trial ends he will ask for a special enhancement to the charge of murder that would add more time to the sentence, if Bond is convicted. Asking the jury to acquit his client, defense attorney Leo Battle said that two neuro-psychiatric doctors who examined the defendant, will testify that Bond suffered from a “brain malfunction that rendered him not able to understand … or appreciate the gravity of his actions.”

According to the prosecutor, Bond had been at the Big Bend Mobile Home Park on Big Bend Road in Yankee Hill that night attending a family barbecue, when he got into a dispute with a man named Michael Reese.

The defendant”s wife, Tara Wike, told the jury Bond had been drinking whiskey and had learned earlier that night that his mother was suffering from a serious illness.

Bond was allegedly trying to stop Wike from leaving the party, when she said she accidentally bumped him with her car as she was backing up.

The defendant allegedly jumped on the hood and broke the windshield with his fist before wandering through the park, attempting to find Reese.

Sandra Warner, who lives across the street from the victim”s trailer, said Bond was “yelling obscenities and racial slurs” and at one point “asked me if I wanted a piece of him,” she testified.

When the victim, Siegler, held up his hands as if to calm Bond, saying “don”t be yelling at the women,” Warner said the defendant “ran toward him and hit him with everything he had” in the face with his fist.

The victim fell forward, grabbing his attacker in a “bear hug” and both went to the ground after the single punch, Warner testified. A second neighbor and close friend of the victim, Jonathan Dougherty, told the jury that as Siegler was lying on the ground, he saw Bond allegedly use his left hand to pull up his head, before delivering what both he and Warner described as an “upper-cut” to the victim”s face with his right fist. “His body just went limp; he didn”t move after that,” Dougherty testified.

The victim was still breathing when they rolled him over, but had no pulse when firefighters arrived a few minutes later, according to the witness.

Members of the victim”s family wept in the courtroom when a color photo showing the unconscious man lying on the ground with blood on his face was displayed on a large screen in front of the jury Tuesday.

Under questioning by Bond”s attorney, both neighbors conceded that although the defendant challenged to fight others, Bond did not try to hit the victim after he was knocked out. Asked by Murphy whether Bond showed any concern for the unconscious man, Dougherty replied, “No, he seemed pretty proud of what he did.”

The homicide trial resumes on Thursday and could be in the jury”s hands sometime next week.